Leaf flipper



P. O. UNGER July 30, 1929.

LEAF FLIPPER Filed 0Ct.- 15, 1928 1T; ,llllllll-llllllll m4 i Ill ll j? INVENTOR (9.

Patented July 30, 1929.

i-UiNiITEID Estersis masts r tries.

'IPLAUL O. UNGER, OF SYRACUSE, NEW YORK, ASSIGN OR TO MCMILLAN BOOK COM- PANY, OF SYRACUSE, NEW YORK, A CORPORATION OF,NEW YORK.

LEiAF FLIPPER.

'Appllcation filed'flctober 13, 1928.v Serial No. 312,259.

and it is desired to closeit the covers, as they.

are brought together, will carry the leaves with them and willmove the leaves upwardly on therings or prongs. When this 'movement takes place'the outer ends ofthe leaves will be moved upwardly in advance of the inner ends of the sheets which carry the perforationswith the result that thetpertorations in the sheets will be placed in an oblique relation to the rings or prongs and-there will be a tendency for the-sheets to bind on the rings or prongs during their'movement'on them. *Whenthis takes placethere isgreat liability ofinjuryto thesheets and particularly to the bottom sheets which support the weight of the sheets which are-positioned on top of them, and the main object of my. invention is to provide a device whiehiwill protect the sheets in aloose-leaf binder when they are being moved' on the'rings or prongs of the binder.

Another objectis to provide aprotective device of such:a character that it'will act as :a guide for the leaves during-such.movement. Another obj ect is to provide a device of the character'describedwhich "will be of such a designthat its own movement on the rings or prongs of-a binder will be accomplished easily without any tendency fforthe device to bind onthe rings-orprongs during-such movement.

Other objectsand advantages relate to the size, shape and association'of the different parts ofmy device: all as will more fully appear from the following description taken in connection with the accompanying drawings,

r channels 7 and 8 the pressure of spring plate 6 on the outer edges of toggle plates 9 and:12

in which V Figure'l 1s a perspective view of my devlce.

Figure 2 is a top plan view partially broken 2 showing the covers of the deviceinthe partially closed position, drawn on a largerscale.

For the purpose of explaining the -construction of my device and the way in which it is-used with a loose leattbinder'l have-here shown abinder of the type which is usually called a split ring binder. The binder'here shown consists of aback member lto which are connected opposed covers 2 and 3 "by means of flexible hinges 4 and 5irespectively. A springback plate 6 curved in cross section is secured to the back 1 by rivets or other convenient means, not shown. Spring-plate 6 has its longitudinaledges return vbent .to form channels 7 and 8. A toggle plate*9,*having secured to its upper surface a plurality,'in this case shown as five, of half rings 10in spaced relation, is positionedwith-its outer longitudinaledge in channel 8'and with'its inner longitudinal edge positionedfbetween theheads of double headed buttons 11, one only being shown. A second togglesplate 12, having secured'thereto a plurality, in this case shown as five, of half rings 13in spaced relation, is positioned withits outer longitudinal edge in channel 7- 'and with itsdnner longitudinal-edge between the-heads ofebuttons 11. A curved cover plate 19, havingits opposite longitudinal edge return bent, is placed in position above spring'plate 6-:with its'longitudinal edges in engagement withithe longitudinal edges of spring plate 6,'the' resiliency of spring plate'6 and cover plate '19 retaining the parts-in this position. 'Cover rings 10 and 13 such movement will be :ac-

complished against the pressure of spring plate 6 so that when the inner edges of such toggle plates 9 and 12 have been raised above downwardly for-the purpose of joining together the ends of half rings 10 and 13 such movement will be accomplished against the pressure of spring plate 6 and when the inner edges of toggle plates 9 and 12 have been moved below channels 7 and 8 and half rings 10 and 13 brought together the pressure of spring plate 6 will resist any upward movement of the inner edges of toggle plates 9 and 12 to yieldingly hold the half rings 10 and 13 in the closed position. The upward and also the downward movement of the inner edges of toggle plates 9 and 12 is limited due to the fact that the distance between the heads of buttons 11 is such that only a limited movement of the edges of toggle plates 9 and 12 therebetween is permitted.

The half rings 10 on toggle plate 9 are so positioned with relation to the half rings 13 on toggle plate 12 that when opposing half rings are moved towards each other their upper ends will register with each other.

The device which I provide for use with a loose leaf-binder of the type just describedconsists of an approximately rectangular member 14 preferably made of metal or fibre or some other material sufliciently stiff so that the device will not become malformed during use. I provide in member 14 a plurality, in this case shown as five, of oval apertures 15 so positioned that they will register with the rings 10 and 13 of the binder. I also provide in the edge of the member 14 opposite the apertures 15 notches '16 for a purpose hereinafter to be described.

The material of which member 14 is made a djacent the inner ends of apertures 15, is dlsplaced to form a U-shaped groove or channel 17 extending downwardly from the upper surface of member 14 to apertures 15.

The material between the apertures and the adjacent notches 16 is displaced upwardly to form a reverse groove 18 connecting aper- I of the body ad acent the apertures, and retures 15 and adjacent notches 16.

In operation, I place one of my members 14 in position on cover 3 with half rings 10 extending upwardly through apertures 15. I place another member 14 on cover 2 with half rings 13 extending upwardly through apertures 15. This relation of parts is shown in Figure 2 and indicated by dotted lines in Figure 3. When covers 2 and 3 are moved" upwardly from the open position shown in dotted lines in Figure 3 they will carry upwardly the outer edges of members 14 positioned on them which will cause the inner edges of members 14 to Contact with cover plate 19 and move outwardly thereupon. This upward movement of members 14 will cause the grooves 18 to contact with the inner faces of half rings 10 and 13 and will also cause the grooves 17 to contact with the outer surface of half rings 10 and 13. The shape of grooves 17 and 18 and their position in' relation to apertures 15 is such that members 14 may be moved upwardly along half rings position in the binder it will be obvious that I in actual operation with leaves in a hinder the members 14 during the closing of the binder will act as a supporting and guiding means for the leaves in position thereon inasmuch as their path of movement along half rings 10 and 13 will be the same as the path of movement which the leaves will follow during their movement along half rings 10 and 13.

It will be understood that the size and shape of my device may be varied to accommodate it to different sizes and shapes of loose leaf binders and it will also be understood that the number and relative position of apertures 15 and notches 16 may also be varied depending upon the type of binderwith which my device is to be utilized, for altho I have shown and described a specific structure and form and relation of parts as an eX- emplification of an embodiment of my invention I do not desire to restrict myself to the exact size, shape or relation of parts as various changes may be made within the scope of the appended claims.

I claim: I v

1. In a device of the class described, a body, a plurality of apertures in spaced relation adjacent one longitudinal edge of the the body, notches in such longitudinal edge verse grooves in the body connecting the apertures and the notches.

'2. In a device of the class described, a body, a plurality of apertures in spaced relation adjacent one longitudinal edge of the body, notches in such longitudinal edge of the body adjacent the apertures, and channels in the body adjacent the inner ends of the apertures.

3. In a device of the class described, a body, a plurality of apertures in spaced relation adjacent one longitudinal edge of the body,

notches in such longitudinal edge of the body I adjacent the apertures, reverse grooves 111 the body connecting the apertures and the notches, and channels'in the body adjacent the inner ends of theapertures.

In witness whereof I have hereunto set my hand this 28th day of September, 1928.

- PAUL O. UNGER. 

